Car-coupling



ooooooooo r W. SWEET;

GAR OOOOOOO G. 155355.355.

Patented Jan. 4, .1887,

1 Ill! V I "M mm /7 E UNITED STATES PATENT rEicE.

BENJAMIN W. SWEET, OF RODNEY, MICHIGAN.

CAR-COUPLING.-

SPECIFICATION forming part of Letters Patent No. 355.356, dated January 4, 1887.

Application filed November 11, 1886. Serial No. 118,555. No model.)

To all whom it'mcty concern:

Be it known that I, BENJAMIN W. SWEET, a citizen of the United States, residing at Rod-- ney, in the county of Mecosta and State of Michigan, have invented certain new and use- .ful Improvements in Oar-Couplers;'and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to car-couplers; and it consists in the construction and arrangement of the parts, which will be more fully hereinafter described, and pointed out in the claims.

The object of my invention is to provide a car-coupler which is positive in its action, simple and effective in construction, easily understood, readily handled and operated, and applied in connection with any car, and cheaply manufactured. I attain these objects by means of the construction illustrated in the accompanying drawings, wherein like letters of reference indicate similar parts in the several views, and in which-- Figure 1 is a longitudinal vertical section of my improved car-coupler. Fig. 2 is a transverse vertical section on the line X X of Fig. 1. Fig. 3 is a detail view in side elevation of the cam.

A indicates the draw-bar, having a drawhead, B, on the end thereof, of simple and ordinary form of construction. The draw-head B is provided with a cavity or recessed portion, B, which connects with the link-opening bin the forward portion of the draw-head.

The essential features of my improvement are a non-removablelink-pin, D, and an operailing-cam, O, which act in conjunction with a link, E. The cam O is formed in theshape of an irregular ellipse, having an indentation or recess, 0, formed about midway of the forward portion of the same and rectangular-shaped slot 0 in the upper portion thereof. A bolt, a, secured inone side of the upper portion of the draw-head B,extends into the recess B, and engages with and passes through the rectangular slot 0 in the cam 0, being retained therein by suitable small rollers, c 0, arranged on each side of the'said cam O. and surrounding and secured to the bolt a. The indentation or recess 0, formed in the cam O, is so constructed tached.

that the upper portion thereof will extend outward and form a projection,c which extends out and over the lower terminating point, a, of the slot 0, for a purpose which will be more fully hereinafter described. In mounting the cam 0 inside of the draw-head B, it is passed through an opening, I), in the lower portion of the draw-head B, specially adapted for that purpose, the forward wall of said opening also forming a rest against which link-pin D is braced in the actof coupling. The link-pin D is so constructed that it shall be non-removable from the draw-head B. To accomplish this desired result, two "studpins, d (I, extend out from each side thereof, which are adapted to rest on top of the link E when in a coupled position, as shown in Fig. 2. The said'linkpin D, with its projecting studs 6, is united I other means of securement, as d, to which a rope or suitable operating-lever may be at- The opening I) in the under side of the drawhead B is formed rectangular in shape, so that the stud-pins d d on the linkpin D may be inserted in lengthwise of the said opening, and thence turned around, so as to come across the same, thereby preventing the said link from dropping through said opening out of operative position.

The operation of the parts of my improved coupler is as follows: The link-pin D is raised until one of the stud-pins (1 thereof engages with and rests in the recess 0 in the cam O, as shown in dotted lines, Fig. 1, the said cam assuming a vertical position and extending down and near the inside portion of the draw-head B. The link E entering the openingbstrikes the lower portion of the cam O and throws it back to such a position as to release the studpin d, resting in the recess 0, and the link-pin D is allowed to drop, and passes through the opening of the link E, the stud-pin d resting on the top portion thereof, and thereby secure the said link E in a coupled position, the said link being prevented from entering the draw-head only to the extent of its recess 6, but permits the outer end of the link to rise and fall. In uncoupling the link thelink-pinD is raised until the lower portion thereof clears the said link,when it can be readily withdrawn. The cam 0, being made in the shape shown and described, can be raised and lowered to engage the studs on the link-pin when desired to uncouple. When the link-pin Dis raised, one of the studs (1 strikes the upper projection, c, of the cam O, and raises thesaid cam and moves the lower end of the same ahead. and forcing the link-pin forward in a positive coupling position. The pin then rests in the can through the medium of the stud-pins, as here: tofore described, and is released therefrom when the link E strikes the lower portion of the-cam O. The cam O has suflicient move ment to prevent cramping and disarrangement of the parts of the coupler, thereby providing an operative device at all times.

'It is obvious that many minor changes in the construction and arrangement of the parts might be made and substituted for those shown and described without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a car-coupler, the combination, with the draw-head having suitable recess, of acam mounted therein having a recess at or about its central portion and arectangular slot at its upper portion engaging with a pivotal suspending-pin, and a link-pin having projecting studs, substantially as described. 2. In a car-coupler, the combination,with a recessed draw-head, B, of a cam, G, mounted therein and to one side thereof, having an indentation or recess, a, with a projection, 0 over the same, a suspending pivotal bolt, a. engaging with a rectangular slot, 0, in the said cam O, and alink-pin, D, having studs cl d, projecting therefrom and operating in connection with both the cam-recess and coupling-link, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

BENJAMIN V. S\VEET. WVi tn esses:

A. O. HIBBARD, CHAS. E. DEANE. 

